UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Failure and detachment path of impulsively loaded plates

Schiano Moriello, D; Bosi, F; Torii, R; Tan, PJ; (2020) Failure and detachment path of impulsively loaded plates. Thin-Walled Structures , 155 , Article 106871. 10.1016/j.tws.2020.106871.

[img] Text
2020_Failure and detachment path of impulsively loaded plates_TWS_Dario Schiano Moriello.pdf - Accepted version
Access restricted to UCL open access staff until 11 July 2021.

Download (10MB)

Abstract

The deformation and detachment path of simply-supported and fully clamped mild steel quadrangular plates subjected to impulsive blast loads are investigated numerically. A comprehensive failure model that incorporates two competing mechanisms of damage due to ductile and shear failure is employed to simulate the progression of tearing within the plate. The stress triaxiality dependent Modified Mohr-Coulomb (MMC) fracture criterion is implemented in a finite element model, and experimental tensile and shear tests were carried out to calibrate the material parameters. The direction of crack propagation along the clamped plate support and the residual length are predicted for a wide range of impulse intensity, reproducing the failure modes observed experimentally. Furthermore, the developed model highlights the different failure mechanisms that occur in simply-supported plates, similar to those of panels subjected to localised blast loadings. Parametric studies are performed to establish dimensionless failure maps and investigate the influence of plate topology and boundary conditions on the dynamic response, for both square and rectangular geometries, thus offering an effective support for the design of impulsively loaded plates for advanced engineering applications.

Type: Article
Title: Failure and detachment path of impulsively loaded plates
DOI: 10.1016/j.tws.2020.106871
Publisher version: https://doi.org/10.1016/j.tws.2020.106871
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Metal plates, Failure modes, Crack propagation, Tear length, Blast loading
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10104834
Downloads since deposit
1Download
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item